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# How to Diagnose a Faulty Light Switch

### The most common symptom of a faulty Light Switch is:

* Vehicle lights do not turn on

### Here are a few ways you can troubleshoot a faulty Light Switch

* Bulb failure is very rare therefore please eliminate the cables on the switch itself by prying the switch off it's housing and making sure the cables are connected properly.  If the cables are connected, then the most likely fault is the switch so please contact our customer service team.